Rain, as well as many of mother nature's offerings, have been the subject of (or influence for) a plethora of songs. Dark clouds, thunder, lightning, and being forced to remain indoors can bring out the sadness in some and helps to create those somber songs.
Patty Griffin - Rain
buy 1000 Kisses (2005)
Willie Nelson - Rainy Day Blues
buy Songbird (2006)
Ryan Adams - Rainy Days
from The Destroyer Sessions (2000)
Walt Wilkins - 18 Days of Rain
buy Hopewell (2007)
Often used as a metaphor for the cleansing of the soul, rain songs can also be uplifting, despite the gloominess the rain might bring. You can find some hope in a storm if you look forward to the fresh skies that will follow.
The Jayhawks - Save it for a Rainy Day
buy Rainy Day Music (2003)
Creedence Clearwater Revival - Have You Ever Seen The Rain?
buy Pendulum (1970)
James McMurtry - Walk Between the Raindrops
buy Walk Between the Raindrops (1998)
Jerry Jeff Walker - Hill Country Rain
buy Hill Country Rain (1992)
i've got an even better of mix of storm songs that i created as a mixtape when a hurricane was on its way here a few years ago. The next time one rolls through i'll try to post it.